Quote:
Originally Posted by ls3c6
I tested jb4 at the drag strip, map1 was same as stock and map2 was 4mph and 4 tenths slower than stock.
It doesn't work on this platform, flash is required I suspect due to torque limitation.
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BMS owns a G20 M340 among other B58 vehicles, zero issues adding performance with it. We run it also on our Z4.
It's not possible for a map to go slower unless you're riding some sort of octane limitation or have something set dramatically wrong.
Our last JB4 Z4 dyno:
